/*
 * Copyright (C) 2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.airbnb.lottie.utils;

import ohos.eventhandler.EventHandler;
import ohos.eventhandler.EventRunner;
import ohos.eventhandler.InnerEvent;

import java.lang.ref.WeakReference;

/**
 * 功能描述
 */
class InvalidationHandler extends EventHandler {
    static final int MSG_TYPE_INVALIDATION = -1;

    private final WeakReference<LottieValueAnimator> mLottieRef;

    InvalidationHandler(final LottieValueAnimator gifDrawable) {
        super(EventRunner.getMainEventRunner());
        mLottieRef = new WeakReference<>(gifDrawable);
    }

    @Override
    protected void processEvent(InnerEvent event) {
        final LottieValueAnimator ltDrawable = mLottieRef.get();
        if (ltDrawable == null) {
            return;
        }
        if (event.eventId == MSG_TYPE_INVALIDATION) {
            ltDrawable.doFrame(System.nanoTime());
        }
    }
}
